L-34-180 REV. A NEW HONEYWELL MULTI-MODE RECEIVER -PiN 066-50029-1201. SERVICE LETTER INFORMATIONAL MOS 0I-FEB-2005 SL 737-SL-34-180 REV. 8 NEW HONEYWELL MULTI-MODE RECEIVER - 066-50029-1201. SERVICE LETTER MOS 10-MAY-2005 SL 737-SL-34-181 FLIGHT MANAGEMENT COMPUTER - UPDATE 10.6. SERVICE LETTER INFORMATIONAL MOS